Airtac SE125 Standard Cylinder SE125X115S
The AirTAC Airtac SE125 Standard Cylinder SE125X115S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 115mm stroke, PT1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ125 mm
- Stroke115 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X115S
The AirTAC SE125X115S is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks, delivering a robust 6136 N push force at 0.5 MPa. Its square extruded aluminum barrel omits external tie rods entirely, yielding a compact, corrosion-resistant body that mounts flush against machine frames while maintaining the standardized ISO 15552 footprint.
Equipped with a built-in magnet (S option), this 125mm bore unit seamlessly integrates AirTAC CMSE reed and DMSE electronic position sensors along the three integrated sensor grooves. The field-adjustable air cushioning at both ends allows technicians to dial in the exact deceleration rate for a 115mm stroke, softening hard end stops and protecting the 32mm piston rod from impact shock.
Airtac SE125 Standard Cylinder SE125X115S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X115S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 115 mm |
| Acting type | Double acting |
| Port size | PT1/2 |
| Rod thread | M27×2 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C (0–150 °C with FKM seals) |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SE series datasheet and ISO 15552 / VDMA 24562 dimensions. Confirm against the product label before installation. Port options: PT (standard) / G (BSPP).
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SE125 Standard Cylinder SE125X115S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×115 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensor sensing. |
Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B). Seals: TPU (blank) / FKM high-temp (H) / NBR (N). Thread: PT (blank) / G. Mounting: Basic, LB, FA, FB, CA, CB, CR, TC, FTC, TCM1, TCM2. Related SE-family variants: SED (double rod), SEJ (adjustable stroke), BSE (rod lock), BSED (double-rod rod lock).
Where the Airtac SE125 Standard Cylinder SE125X115S Is Used
Automotive Stamping Press
Drives heavy stamping dies with 6136 N of thrust at 0.5 MPa, utilizing the 115mm stroke to form sheet metal panels securely.
Plastic Injection Mold Ejection
Provides the high breakout force needed to eject dense molded plastic parts from heavy tooling, relying on the 32mm rod to resist bending.
Heavy-Duty Metal Straightening
Applies up to 1252 kgf of pressing force to flatten or straighten thick steel profiles, with adjustable cushions softening the stroke ends.
Is the Airtac SE125 Standard Cylinder SE125X115S the Right Cylinder?
Selecting the SE125X115S is ideal when your application demands extremely high thrust, such as pressing or heavy lifting, since it provides a maximum push of 1252 kgf at 1.0 MPa. If you need to step the bore down to optimize air consumption or footprint, the neighboring 100mm bore yields 3927 N push at 0.5 MPa; stepping up is not possible as 125mm is the largest standard SE size. As a true ISO 15552 cylinder, it serves as a drop-in replacement for other ISO 15552 cylinders, matching the exact bore, 115mm stroke, PT1/2 port, and standard mounting accessories. Note that a plain SE cylinder does not hold its load when air pressure is lost or the valve is centered; if your press or lift requires fail-safe position holding, consider the BSE rod lock variant or an external pilot-operated check valve.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/G)
- ✓ Magnet (-S) for CMSE/DMSE sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/CR/TC/FTC/TCM1/TCM2).
- check Installation by qualified personnel per AirTAC docs.
Airtac SE125 Standard Cylinder SE125X115S FAQ
The SE125X115S delivers a push force of 6136 N and a pull force of 5734 N at 0.5 MPa. At 0.7 MPa, the push force is 8590 N, and the maximum push is 1252 kgf at 1.0 MPa. It features a PT1/2 port and a 32mm piston rod.
Yes, the 'S' option indicates a built-in magnet compatible with AirTAC CMSE (reed) and DMSE (electronic) sensors. Additionally, it features field-adjustable air cushioning at both ends to decelerate the piston near the 115mm stroke limits, though this cushion acts only as a shock absorber and not as a position hold.
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